In an upright vessel contains 5 tons of coal at a temperature of 1200 C. Steam flows from below with a temperature of 200 C in a supersaturated state. As a result, a reaction occurs between steam and coal. The product of the reaction comes out of the vessel at a temperature of 800 C with the following composition: CO2 = 6,5% CO = 39,7% H2 = 53,5% The analysis shows that 30% of the incoming steam is unraveled. Determine the amount of heat that occurs!